Ray Price
Trump accounts, formally known as 530A accounts, are a new tax advantaged savings vehicle for children under 18 that launch on July 4, and the fine print carries a wrinkle worth flagging: until the beneficiary turns 18, the money must sit entirely in U.S. equities, with no bond allocation permitted.
At a Glance
- 530A accounts (Trump accounts) become available to children under 18 starting July 4.
- Funds must be invested exclusively in U.S. stocks until the child reaches 18, with no bond exposure allowed.
- Since the mid 1920s, stocks have beaten bonds by 5.5 annualized percentage points, but that stretch is a historical outlier.
- A 60/40 stock bond mix returned 9.1% annualized over rolling 10 year periods since 1926, versus 10.7% for an all stock portfolio.
What a Mandatory All Equity Structure Actually Means
The 530A design forces every dollar into the U.S. stock market for as long as the account holder is a minor. There is no mechanism for diversifying into fixed income, cash equivalents, or international assets during that window. For an account meant to accumulate over a full childhood, that is a structural constraint, not a marketing detail, and it deserves the same scrutiny an analyst would apply to any single asset class mandate.
Reading the Full Historical Record, Not Just the Recent One
Data compiled by Edward McQuarrie, professor emeritus at Santa Clara University, shows that the equity premium investors have grown used to is a recent phenomenon in the context of U.S. financial history. Splitting the record into rough thirds tells the story cleanly: in the earliest third, stocks failed to beat bonds over any 50 year rolling period. In the middle third, stocks won roughly half the time. Only in the final third, the modern era, did equities outperform bonds in 100% of 50 year periods measured.
That progression matters for a policy that locks minors into equities for up to 18 years. Eighteen years is a long horizon, but it is nowhere near 50, and even the modern era's dominance was not guaranteed by any structural law of markets. It emerged from a specific set of economic and policy conditions that no analyst should assume will repeat indefinitely.
Quick Facts
- Stocks have outperformed bonds by 5.5 percentage points annualized since the mid 1920s.
- A 60/40 portfolio (S&P 500 (SPX) and long term Treasurys) returned 9.1% annualized over 10 year rolling windows since 1926.
- A 100% stock portfolio returned 10.7% annualized over the same rolling 10 year windows.
- In the earliest third of U.S. market history, stocks never beat bonds over any 50 year span.
The Case for Diversification Even in a Winning Era
The gap between the 60/40 blend's 9.1% and the all equity portfolio's 10.7% is narrower than many investors would guess, especially given that this comparison spans a century that favored stocks about as strongly as any period on record. A 1.6 percentage point annualized difference, compounded over a decade, is real, but it is not so wide that it erases the volatility reduction a bond allocation provides. For a savings vehicle tied to a specific beneficiary and a specific age based unlock date, sequence of returns risk is not a theoretical concern.
Eligibility and Practical Trade Offs for Families
Beyond the investment mandate, families considering a 530A account need to understand the mechanics: how to open one, where the contributed funds are custodied, and how withdrawal rules apply once the beneficiary turns 18. The Treasury has issued guidance clarifying where the money can be invested, and the IRS has outlined a process for account setup. None of that guidance changes the core restriction: no bonds, no international equities, no diversification away from the U.S. stock market, until adulthood.
Comparing the Numbers
| Portfolio | Annualized 10 Year Return Since 1926 | Composition |
|---|---|---|
| All U.S. Stock | 10.7% | 100% S&P 500 |
| 60/40 Blend | 9.1% | 60% S&P 500, 40% long term Treasurys |
| Stock vs Bond Premium (since mid 1920s) | 5.5 percentage points annualized | Stocks minus bonds, total return |
For a program designed to hold savings for a child over as much as 18 years, the historical record argues for humility rather than confidence that equities will automatically win. The modern era's stock dominance has been real and substantial, but it followed two-thirds of U.S. history in which that outcome was far from assured, and the mandatory all stock structure of these accounts leaves no room to hedge that uncertainty until the beneficiary comes of age.
